EP3105786A1 - Verfahren zur herstellung einer bondbaren beschichtung auf einem trägerband - Google Patents
Verfahren zur herstellung einer bondbaren beschichtung auf einem trägerbandInfo
- Publication number
- EP3105786A1 EP3105786A1 EP15704012.2A EP15704012A EP3105786A1 EP 3105786 A1 EP3105786 A1 EP 3105786A1 EP 15704012 A EP15704012 A EP 15704012A EP 3105786 A1 EP3105786 A1 EP 3105786A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier tape
- metallic
- intermediate layer
- functional layer
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/017—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of aluminium or an aluminium alloy, another layer being formed of an alloy based on a non ferrous metal other than aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/01—Manufacture or treatment
- H10W70/04—Manufacture or treatment of leadframes
- H10W70/048—Mechanical treatments, e.g. punching, cutting, deforming or cold welding
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/40—Leadframes
- H10W70/456—Materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/40—Leadframes
- H10W70/456—Materials
- H10W70/457—Materials of metallic layers on leadframes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/0711—Apparatus therefor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/075—Connecting or disconnecting of bond wires
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/5363—Shapes of wire connectors the connected ends being wedge-shaped
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/551—Materials of bond wires
- H10W72/552—Materials of bond wires comprising metals or metalloids, e.g. silver
- H10W72/5524—Materials of bond wires comprising metals or metalloids, e.g. silver comprising aluminium [Al]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/951—Materials of bond pads
- H10W72/952—Materials of bond pads comprising metals or metalloids, e.g. PbSn, Ag or Cu
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/756—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked lead frame, conducting package substrate or heat sink
Definitions
- the invention relates to a method for producing a bondable coating on a carrier tape and to a carrier tape coated with such a method.
- copper-based tapes are used for the electronic connection of power components with bonding wires. It is known from DE 42 29 270 A1 and DE 10 2008 025 664 A1 to bond bondable coatings by rolling to a carrier tape.
- EP 0 027 520 A1 and US Pat. No. 4,521,257 A propose the use of copper-tin alloys as support materials. A disadvantage of this material is that a higher strength of the carrier material and lower costs for the carrier material are desired.
- lower-cost copper-zinc alloys have the disadvantage that they can poison the aluminum-based bonding layers and bonding wires due to the high zinc content and thereby impair the connection.
- the object of the invention is therefore to overcome the disadvantages of the prior art.
- a method for producing a carrier tape and a carrier tape is to be found, which meets the requirements for carrier tapes for high performance, without causing an unwanted rejects in the production or in the electronic components produced therewith.
- a poisoning of the bonding surface with harmful atoms and a tearing or damage to the connection of the bonding wire to the surface or the bonding surface with the Carrier tape can be avoided.
- cost-effective materials should be used as a carrier tape.
- the objects of the invention are achieved by a method for producing a bondable coating on a metallic carrier strip made of a brass alloy with at least 15% by weight of zinc or a copper-based alloy containing at least 0.03% by weight of titanium, chromium, zirconium and / or cobalt, in which a single operation, a bondable metallic functional layer of aluminum or an aluminum-based alloy and a metallic intermediate layer are applied and bonded to the metallic carrier tape with a Walzplatt istsvon, wherein the intermediate layer is disposed completely between the functional layer and the metallic carrier tape, so that no connection of the functional layer with the metallic carrier tape is created.
- the functional layer is provided so that it can be connected to a bonding wire, preferably connected to a bonding wire made of aluminum or an aluminum-based alloy.
- bond wires made of gold or a gold alloy can be connected to the functional layer or be connectable.
- Alloys for the carrier tape which are preferred according to the invention are, for example, CuCrZr (UNS: C18400), CuZr0.1 (US: C15100), CuCrSiTi (US: C18070), CuCrAgFeTiSi (US: C18080), CuSnCrNiTi (US: C18090) and CuNi1Co1Si (US : C70350), which are particularly suitable as materials for a cost-effective and mechanically robust carrier tape.
- an aluminum-silicon alloy is used as the metallic functional layer.
- Such aluminum-silicon alloys can be combined particularly well and stably with the conventional aluminum-based bonding wires.
- copper and copper-based alloys are preferred according to the invention due to the lower cost compared to nickel and nickel-based alloys.
- the Alloys or the metals are preferred except for impurities free of zinc.
- Such intermediate layers are good for trapping zinc atoms, that is, suitable as a diffusion barrier layer.
- a zinc precipitate has a negative effect on the bondability of the functional layer.
- a mechanically stable connection of the aluminum-based functional layer to a carrier layer of a copper-based alloy containing at least 0.03% by weight of titanium, chromium, zirconium and / or cobalt can be produced with such an intermediate layer.
- the metallic functional layer and the metallic intermediate layer are applied as ribbons to the metallic carrier strip, the strip for the intermediate layer being arranged between the strip for the functional layer and the carrier strip, and the subsequently stacked ribbons subsequently with the roll-plating method be connected to each other.
- the produced coated carrier tape may finally be cut into strips of the desired width and length for the application of the carrier structure.
- the metallic carrier strip, the metallic functional layer and the metallic intermediate layer are, prior to assembly, rolled up as endless strips which are unwound for joining the layers.
- the connection of the bands is effected by a continuous roll-plating of the bands between rollers.
- the tapes are fed via rollers.
- An endless belt according to the invention is to be understood as meaning a belt with a length of at least 1 m, preferably a belt with a length of between 5 m and 100 m. Of course the band will not be really endless.
- This variant of the method also serves to further simplify mass production.
- the carrier tape connected to the intermediate layer and the functional layer be rolled up as an endless belt.
- Such a rolled coated carrier tape can then be further processed with conveyors.
- the precursor produced by the endless belt thus serves to simplify subsequent assembly for mass production.
- the carrier tape is cleaned before being joined to the other layers, in particular mechanically cleaned with brushes and / or chemically cleaned, preferably before laying the intermediate layer , wherein preferably also the band for the intermediate layer and / or the band for the functional layer is cleaned prior to bonding, in particular mechanically cleaned with brushes and / or chemically.
- a stream of air may be blown onto the surface of the belts to remove debris such as shavings that may have been produced by a peeling process.
- the carrier strip coated with the roll cladding has a thickness of between 0.5 mm and 2 mm.
- the thickness of the intermediate layer after roll cladding is preferably between 5 ⁇ and 30 ⁇ .
- the thickness of the functional layer is preferably between 10 ⁇ and 50 ⁇ .
- the carrier tape coated with the functional layer is used as a substrate for the electrical contacting of power components with bonding wires, preferably for the production of low-current contacts.
- the objects underlying the invention are also achieved by a coated carrier tape produced by such a method in which the intermediate layer is arranged and fixed on the carrier tape and the functional layer is arranged and fixed on the intermediate layer. This makes it possible to ensure that the intermediate layer is arranged completely as a stabilizing and chemically insulating connecting element (as a diffusion barrier) between the functional layer and the carrier tape. This ensures that there is no poisoning with zinc at any point of the functional layer or a weakening of the mechanical connection to the carrier tape due to existing in the surface of the carrier tape precipitates of said alloying elements as oxides or as compounds of the elements with each other.
- the metallic carrier tape is a brass alloy with at least 15% by weight of zinc or a copper-based alloy with at least 0.03% by weight of titanium, chromium, zirconium and / or cobalt.
- the intermediate layer either as a diffusion barrier against zinc atoms or as bridging the precipitates of said alloying elements as oxides or of compounds of the elements with each other in the surface of the carrier tape for mechanical stabilization of the mechanical connection of the functional layer to the carrier layer has a positive effect on the properties of coated carrier tape off.
- the metallic functional layer is aluminum or an aluminum-based alloy, preferably an aluminum-silicon alloy.
- Such aluminum-silicon alloys or pure aluminum can be combined particularly well and stably with the conventional aluminum-based bonding wires.
- the coated carrier tape is suitable as a substrate for the electrical contacting of power components with bonding wires, preferably for the production of low-current contacts.
- the metallic intermediate layer is copper or a copper-based alloy or nickel or a nickel-based alloy.
- the invention is based on the surprising finding that it is possible by applying an intermediate layer between the bondable functional layer and the carrier tape to apply the intermediate layer as a support layer for fixing the functional layer, wherein the intermediate layer in the surface of the carrier tape existing vulnerabilities, such as titanium oxide inclusions or bridged other oxidic inclusions and thus provides a stable connection of the bondable functional layer to the carrier tape, and / or the intermediate layer serves as a diffusion barrier against diffusion of interfering atoms such as zinc atoms in particular from the carrier tape in the functional layer to the functional layer from the harmful effects to protect these atoms.
- the coated carrier tape can be produced at a low cost.
- suitable copper materials for power electronics which are typically alloyed with the elements Cr, Ti, Zr and Co (and / or optionally other elements), depending on the alloy content tend to undissolved metal inclusions or Metallloxidein Beingn.
- An example of this can be used for the material K75 ® (a copper-based alloy with 0.3 wt% chromium, 0.1 wt% titanium, 0.02 wt% silicon and the balance copper) are called 2 inclusions, the occurrence of TiO that have a diameter or a longitudinal structuring of, for example, 10 ⁇ to 60 ⁇ in cross section. In sections of such materials as K75 ® , cellular undissolved TiO 2 inclusions can be found.
- the method of introducing a diffusion barrier layer or support layer as an intermediate layer can be used according to the invention for a number of roll-bonded material combinations.
- Full-surface intermediate layers serve primarily as a diffusion barrier and adhesion promoter, with selective intermediate layers have been introduced especially for connector tapes for layer thickness reduction via a Vordouble. In both cases, preference is given to using nickel (Ni) or a Ni-based alloy.
- the Vordouble is a type of pre-plating of particular precious metal-containing functional materials, which serves the fact that the functional layer can be produced or rolled as thin as possible after the actual plating and thus precious metal can be saved.
- the pre-plating is usually carried out in a separate step.
- the required functional intermediate layer is plated inline, ie during the actual plating process , in this case, both a selective and full surface (over the entire width of the carrier tape) intermediate layer is possible, the selective variant is preferred.
- the width of the selective intermediate layer should be at least equal to the width of the bondable functional surface, wherein a bilateral supernatant of the intermediate layer of at least 0.5 mm is preferred for adhesion reasons.
- the materials of this intermediate layer are primarily copper (Cu) or copper base alloys as well as nickel (Ni) or nickel-based alloys in question.
- the time-dependent and temperature-dependent diffusion process of the zinc into the bondable functional surface preferably an aluminum-silicon alloy (AISi), is prevented or takes place predominantly in the intermediate layer.
- AISi aluminum-silicon alloy
- the inline direct plating of a specially selective intermediate layer as a diffusion compensation layer or bonding layer for bondable functional surfaces offers the saving of costly process steps in comparison to the standard process with the use of a predouble.
- This intermediate layer also allows the cost-effective use of new carrier materials while Ensuring good adhesion of the bondable functional surface or functional layer.
- an inline-plated selective intermediate layer as an adhesion promoter may be carried out, for example, with the carrier material K75 ® as a carrier tape.
- a coated carrier tape produced by a method according to the invention and a coated carrier tape according to the invention can preferably be used in the field of press fit connection technology as well as in new applications of power electronics, in which more efficient, copper- and precipitation-based materials are to be used.
- Such precipitation-based materials are due to their special relaxation capacity and high strength coupled with good electrical conductivity for the application increasingly interesting.
- FIG. 1 shows a schematic cross-sectional view of an apparatus for implementing a method according to the invention
- FIG. 2 shows a schematic cross-sectional view of a roll-coated coated carrier tape according to the invention.
- FIG. Figure 1 shows a schematic cross-sectional view of an apparatus for implementing a method according to the invention.
- a carrier tape 4 made of CuZn20 or another brass with at least 15% by weight of zinc or a precipitation-hardening copper-based alloy containing at least 0.03% by weight of titanium, chromium, zirconium and / or cobalt.
- a Wieland-K75 ® copper-based alloy containing 0.3 wt% chromium, 0.1 wt% titanium, 0.02 wt% of silicon is used and the balance copper.
- the alloys CuCrZr come as material for the carrier tape 4 (US: C18400), CuZrO, 1 (US: C15100), CuCrSiTi (US: C18070), CuCrAgFeTiSi (US: C18080), CuSnCrNiTi (US: C18090), and CuNi1Co1Si (US: C70350).
- the rolled-up carrier tape 4 is unrolled from the reel 2 and passed through a brushing machine 6 or other device for cleaning the surface of the carrier tape 4 to be coated. Subsequently, the cleaned carrier tape 4 is fed to a roll plating machine 8.
- a functional layer tape 14 is unrolled and a third reel 12 or third reel 12 rolls an intermediate layer tape 16.
- the functional layer band 14 is made of an aluminum-silicon alloy
- the intermediate-layer band 16 is made of a nickel-based alloy or a copper-based alloy.
- the belts 14, 16 are also fed to the roll plating machine 8.
- the tape 1 6 is placed for the intermediate layer on the carrier tape 4 and the tape 14 for the functional layer is placed on the tape 16 for the intermediate layer.
- the intermediate layer tape 16 is at least as wide as the functional layer tape 14 or wider.
- the belts 4, 14, 16 are rolled and pressed together by means of two rollers 18 of the roller plating machine 8 under pressure and, if desired, at an elevated temperature, for example at 200 ° C to 600 ° C.
- an elevated temperature for example at 200 ° C to 600 ° C.
- more than one band 16 for the intermediate layer and more than one band 14 for the functional layer can be conveyed parallel to one another and connected to the carrier band 4, so that the functional layers and intermediate layers produced are arranged side by side on the carrier band 4.
- carrier tape 4 it is also possible to cover the carrier tape 4 completely with only a very wide band 16 for the intermediate layer for producing a carrier tape 4 substantially or completely covering the intermediate layer and on the intermediate layer a plurality of juxtaposed functional layers by laying and roll cladding of several juxtaposed bands 14th for the functional layer produce.
- the belts 4, 14, 16 are conveyed by the roller plating machine 8, joined together there, and then the resulting coated carrier tape 20 is rolled up again on another reel 22 or reel 22.
- FIG. 2 shows a schematic cross-sectional view of a roll-coated coated carrier tape 30 according to the invention, which can be produced, for example, by a method as explained for FIG.
- an intermediate layer 34 made of a nickel-based alloy or a copper-based alloy have been applied by roll-plating.
- a functional layer 36 made of aluminum or an aluminum-silicon alloy with roll cladding is fastened.
- the intermediate layer 34 was connected to both the carrier tape 32 and the functional layer 36 in a single operation.
- the carrier tape 32 is made of a precipitation-hardening copper-based alloy such as CuCrZr (UNS: C18400), CuZr0.1 (US: C15100), CuCrSiTi (US: C18070), CuCrAgFeTiSi (US: C18080), CuSnCrNiTi (US: C18090 ) or CuNM Col Si (US: C70350) or a brass with a zinc content of at least 15% by weight.
- the intermediate layers 34 are wider than the respective functional layer 36 attached to it, for example at least 0.5 mm wider, wherein a protrusion of the intermediate layer on both sides is preferred.
- the carrier tape 32 contained oxidic inclusions, such as titanium oxide, chromium oxide and / or zirconium or metallic compounds, such as compounds of titanium, chromium and / or zirconium, which are located on the upper surface facing the bonding surface of the carrier tape 32 and the one Bonding with a bonding wire (not shown) would be covered by the intermediate layer 34.
- oxidic inclusions such as titanium oxide, chromium oxide and / or zirconium or metallic compounds, such as compounds of titanium, chromium and / or zirconium, which are located on the upper surface facing the bonding surface of the carrier tape 32 and the one Bonding with a bonding wire (not shown)
- the thickness of the roll-plated intermediate layer 34 is between 5 ⁇ and 30 ⁇ .
- the thickness of the functional layer 36 is between 10 ⁇ and 50 ⁇ .
- the thickness of the entire carrier tape 32 with the intermediate layer 34 and the functional layer 36 is between 0.5 mm and 2 mm.
- the intermediate layer 34 serves as a diffusion barrier layer which prevents diffusion of zinc atoms into the functional layer 36. This also causes a secure connection of a bonding wire to the bonding surface of the functional layer 36 can be produced.
- FIG. 3 shows an enlarged schematic cross-sectional view of the roll-coated coated carrier tape 30 according to FIG. 2 with a bonding wire 42 connected to a bonding surface 38.
- FIG. 3 shows by way of example an oxide inclusion 40 (for example a titanium oxide inclusion) in the surface of the carrier tape 32 is covered by the intermediate layer 34.
- the bonding wire 42 has been connected to the bonding surface 38 of the functional layer 36 by a known method.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Non-Insulated Conductors (AREA)
- Wire Bonding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014101882.6A DE102014101882A1 (de) | 2014-02-14 | 2014-02-14 | Verfahren zur Herstellung einer bondbaren Beschichtung auf einem Trägerband |
| PCT/EP2015/053006 WO2015121367A1 (de) | 2014-02-14 | 2015-02-12 | Verfahren zur herstellung einer bondbaren beschichtung auf einem trägerband |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3105786A1 true EP3105786A1 (de) | 2016-12-21 |
| EP3105786B1 EP3105786B1 (de) | 2019-04-03 |
Family
ID=52469058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15704012.2A Active EP3105786B1 (de) | 2014-02-14 | 2015-02-12 | Verfahren zur herstellung einer bondbaren beschichtung auf einem trägerband |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10211180B2 (de) |
| EP (1) | EP3105786B1 (de) |
| CN (1) | CN105981165B (de) |
| DE (1) | DE102014101882A1 (de) |
| WO (1) | WO2015121367A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017178643A1 (en) | 2016-04-15 | 2017-10-19 | Koninklijke Philips N.V. | Ecg training and skill enhancement |
| DE102016110847B4 (de) * | 2016-06-14 | 2022-02-17 | Auto-Kabel Management Gmbh | Leitungsintegrierter Schalter und Verfahren zum Herstellen eines leitungsintegrierten Schalters |
| CN115475797B (zh) * | 2022-09-30 | 2024-04-05 | 肇庆绿宝石电子科技股份有限公司 | 一种叠层电容器及其制造方法、载条清洗液及制备方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1139102A (en) * | 1966-05-09 | 1969-01-08 | Olin Mathieson | Composite metal article and process for producing same |
| DE2940772C2 (de) * | 1979-10-08 | 1982-09-09 | W.C. Heraeus Gmbh, 6450 Hanau | Elektrischer Schwachstromkontakt |
| DE3206262C2 (de) | 1982-02-20 | 1986-02-13 | Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim | Verfahren zur Herstellung von galvanisch selektiv mit Edelmetall beschichteten Bändern als Halbzeug für elektrische Kontakte |
| DE3343250A1 (de) * | 1983-11-30 | 1985-06-05 | W.C. Heraeus Gmbh, 6450 Hanau | Verbindungsbauteil fuer elektronische bauelemente |
| US4749548A (en) * | 1985-09-13 | 1988-06-07 | Mitsubishi Kinzoku Kabushiki Kaisha | Copper alloy lead material for use in semiconductor device |
| US5476725A (en) * | 1991-03-18 | 1995-12-19 | Aluminum Company Of America | Clad metallurgical products and methods of manufacture |
| DE4229270A1 (de) | 1992-09-02 | 1994-03-03 | Heraeus Gmbh W C | Schichtverbund für elektronische Bauelemente |
| JP4739734B2 (ja) * | 2003-11-28 | 2011-08-03 | ヴィーラント ウェルケ アクチーエン ゲゼルシャフト | 電子機械的構成要素用の複合材を製造するための連続層、その複合材及び使用方法 |
| DE102007020291A1 (de) * | 2007-01-31 | 2008-08-07 | Osram Opto Semiconductors Gmbh | Optoelektronischer Halbleiterchip und Verfahren zur Herstellung einer Kontaktstruktur für einen derartigen Chip |
| AT504651B1 (de) | 2007-05-30 | 2008-07-15 | Miba Gleitlager Gmbh | Gleitelement |
| DE102008018204A1 (de) * | 2008-02-04 | 2009-08-06 | Wickeder Westfalenstahl Gmbh | Verbundwerkstoff und Verfahren zur Herstellung eines Verbundwerkstoffs |
| WO2010121978A1 (de) * | 2009-04-22 | 2010-10-28 | Basf Se | Strahlungshärtbare beschichtungsmassen |
-
2014
- 2014-02-14 DE DE102014101882.6A patent/DE102014101882A1/de not_active Withdrawn
-
2015
- 2015-02-12 EP EP15704012.2A patent/EP3105786B1/de active Active
- 2015-02-12 CN CN201580008161.8A patent/CN105981165B/zh not_active Expired - Fee Related
- 2015-02-12 WO PCT/EP2015/053006 patent/WO2015121367A1/de not_active Ceased
- 2015-02-12 US US15/118,171 patent/US10211180B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3105786B1 (de) | 2019-04-03 |
| US10211180B2 (en) | 2019-02-19 |
| CN105981165A (zh) | 2016-09-28 |
| US20170170139A1 (en) | 2017-06-15 |
| WO2015121367A1 (de) | 2015-08-20 |
| DE102014101882A1 (de) | 2015-08-20 |
| CN105981165B (zh) | 2018-11-30 |
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